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use strict;
use warnings;
...

__DATA__
I need to know how to compare items within a string... I have dropped 
+a textfile into an array, but now I need to check whether words in th
+at text are repeated throughout. I have split the text; as I only wan
+t the text to be manipulated. Maybe it's better to split it like this
+; So anyway, I basically need to check now across my string whether a
+ny elements in my string are repeated, and if so, how many times. I'v
+e read alot about manipulating arrays, but they're all based on array
+s that you create yourself, rather than arrays created by opening a t
+extfile, so I'm not sure how to manipulate my array. Any help would b
+e much appreciated.

use strict;
use warnings;
...
for (@w) {
    print "$_ : $c{$_}\n" if $c{$_} > 1;
}